Dr. Y R M Rao, Shubhangi S.Malkhede,. “Equilibrium Studies on Adsorption of Pb2+ Ions Using Citrus Sinensis Peel”. Design Engineering (July 7, 2021): 2034- 2049. Accessed April 19, 2024. http://thedesignengineering.com/index.php/DE/article/view/2528.